Posts tagged ‘Dams’

March 15, 2013

Laos Chided for Lack of Sustainability in Dams

Laos Chided for Lack of Sustainability in Dam

Click on the link to get more news and video from original source: http://www.rfa.org/english/news/laos/dam-03142013184331.html

2013-03-14

Biosphoto. Crops grow along the Mekong River in Pakse, Laos during the dry season, Jan. 31, 2012.

The government of Laos must devise a comprehensive plan for the development of dams in the land locked country, a local activist said Thursday, as villagers downstream along the key Mekong River express concern that the new Xayaburi dam will adversely affect farming and fishing.

Ittiphon Khamsouk, a representative of eight riparian provinces along the Mekong River, told RFA’s Lao Service that he does not oppose the construction of dams in Laos, but wants the government to form a plan of action that will result in more sustainable use of the country’s river systems.

“I do not mean stopping all dam construction, but the government should better consider which dam should be built where, and which dam should not,” Khamsouk said Thursday in marking International Day of Action for Rivers.

“They must consider which dam should be built first and which should be built later,” he said.

“The government needs a development plan.”

Khamsouk said that one example of a dam project that the Lao government has not thoroughly evaluated is the Xayaburi dam, which will become the first dam to be built across the mainstream of the Mekong River.

Resource-starved Laos, which has a total of over 70 dams under construction or in the planning or considerations stages, is aiming to become the “battery” of Southeast Asia by selling hydroelectric power to its neighbors.

But it has drawn ire for pushing forward with the U.S. $3.5 billion Xayaburi hydropower dam without first getting regional consensus from downstream neighbors concerned about the project’s transboundary impact.

According to Khamsouk, activists in Thailand, which sits downstream on the Mekong from the Xayaburi dam, had planned a number of protests against the project in several provinces throughout the country to mark International Day of Action for Rivers.

He said dam experts and villagers who live along the Mekong were to gather at forums in the capital Bangkok, as well as in Ubon and Loei provinces, where they will exchange information about how the Xayaburi and other upstream dams in China are likely to impact riparian communities.

In addition, he said, Thai senators and experts were to meet this week to discuss filing a lawsuit against the Thai government, calling for a cancellation of its power purchase agreement with Laos’s Xayaburi Power Co. An earlier agreement would send 95 percent of the dam’s electricity to Thailand when the dam becomes operational.

The 1,260-megawatt Xayaburi is the first of 12 dams to be built on the Lower Mekong River.

Riparians affected

Thai villagers have recently complained that their fishing and farming has already been affected by what they allege is the opening and closing of Chinese dams upstream on the Mekong and say that the Xayaburi will exacerbate the problem.

One riparian villager, who gave his surname as Khaew, said access to water from the Mekong had become increasingly unpredictable, making reliance on planting crops like rice, chilies, tomatoes, corn, eggplant, lettuce, and other vegetables, a risky business.

“After China completed its [first of four hydropower] dams on the Mekong in 1993, the way of life for Mekong riparian communities was changed forever,” Khaew said.

“Crops used to be planted in January, February, and March, but now they can’t be planted because we don’t know when water will come, or if it will come,” he said, adding that recently the Mekong had dropped to between 2-3 meters (6-10 feet) compared to a normal depth of 12 meters (40 feet).

“This causes difficulties for farmers, affecting their work and family finances. When they can’t grow vegetables, they have no income.”

The average annual income of Thai villagers living along the Mekong River is around 28,325 baht (U.S. $950).

Khaew said that the dry season in Thailand had come earlier than usual this year and had been drier than usual. But sometimes, he said, the water level would rise rapidly.

Farmers in the area believe that the changes are a result of China opening and closing its dams in a bid to generate electricity.

“Sometimes there is too little water, but sometimes the water streams so fast that it floods our crops on the river bank,” Khaew said.

A farmer from Nongkhai province who gave his surname as Tom said that the season was particularly unusual this year, with the Mekong drying up as early as December. He said villagers are worried that the Xayaburi will make things even worse.

“Usually, the Mekong River begins drying up in February, March, and April, but for the past two to three years it has already dried up by the end of November or early December,” he said.

“The four dams that China has built must have closed their water gates to generate electricity—that’s why the water is drying up.”

Fish farmers, who breed in floating stands on the Mekong, say their businesses have also been hit as a result of the lowered river levels, which they say causes higher water temperatures that kill their stocks.

“When the water is shallow, it causes fish to die,” said a fish farmer from Nakhone Phanom province who spoke on condition of anonymity.

“The water was never as low as it is presently. Now it is so dry and the water is so shallow. When the water levels shrink, it becomes hot.”

According to data from the Thai government, at least 562 families in nine villages of five northeastern provinces lived along the Mekong River in 2012. Mekong flooding damaged around 70 percent of crops in the villages, while drought on the Mekong destroyed about 40 percent of crops last year.

Action for Rivers

In an article published by the Bangkok Post on Thursday, Pianporn Deetes, Thailand Campaign Coordinator with the California-based International Rivers, said that as countries open up to free trade and try to boost trans-border investment, corporate giants in Asia have jostled with one another to exploit smaller, resource-rich countries like Laos, Cambodia, and Burma.

“As investors, with support from their governments, seek only to maximise profits, they pay little attention to the impacts on local villagers and river ecology,” she said in an editorial highlighting the 16th anniversary of International Day of Action for Rivers.

“They seem to forget that environmental problems have no boundaries and they, too, cannot avoid the negative consequences of their own projects.”

She said that a number of studies indicate that the Xayaburi dam, if built, will severely curtail the fish populations of the Mekong and that the project, along with the other 11 dams planned for the river “will deal a heavy blow to 2.1 million people and the environment” while only generating 11 percent of the region’s power demand.

Reported by RFA’s Lao Service. Translated by Bounchanh Mouangkham. Written in English by Joshua Lipes.

January 9, 2013

Three Megafish Species Imperiled by Lao’s Mekong River Dam

Three Megafish Species Imperiled by Lao’s Mekong River Dam

Click on the link to get more news and video from original source:  http://newswatch.nationalgeographic.com/2012/12/27/three-megafish-species-imperiled-by-laos-mekong-river-dam/

Posted by Zeb Hogan
on December 27, 2012

On November 7, 2012, the government of Lao PDR held an official groundbreaking ceremony for the Xayaburi dam, the first mainstream dam on the Lower Mekong River.

The Xayaburi dam, the first of eleven dams planned for the mainstream of the lower Mekong River, will likely reduce ecosystem service values and undercut livelihoods of people living in Thailand, Lao PDR, Cambodia, and Vietnam.  A recent Mekong River Commission study reports that the cumulative impacts of the planned dams in Lao PDR could disrupt the lifecycles of migratory fish, block access or destroy spawning grounds, and reduce catch by 270,000 to 600,000 metric tons.

This is especially significant because the Mekong is one of the most biodiverse and productive rivers on Earth.  It is a global hotspot for freshwater fishes: over 1,000 species have been recorded there, second only to the Amazon.  The Mekong River is also the most productive inland fishery in the world.  The total harvest of approximately 2.5 million metric tons per year is valued at $3,600,000,000 to $6,500,000,000.

The Xayaburi dam also poses a serious threat to several of the largest, and rarest, freshwater fish in the world, including the critically endangered Mekong giant catfish (Pangasianodon gigas), the critically endangered giant pangasius (Pangasius sanitwongsei), and the endangered seven-striped barb (Probarbus jullieni).

Evidence suggests that these species, particularly the Mekong giant catfish and giant pangasius, are vulnerable to threats from Xayaburi dam because of their migratory behavior, requirements for specific water quality and flow, and complex life history, which is dependent on seasonal floods.

The official environmental impact report for the Xayaburi project does not assess the dam’s effects on these, and many other migratory and Red Listed, species.  Depending on the scale of migrations and location of spawning sites, the Xayaburi could cause the extirpation of the Mekong’s giant fishes over a large (hundreds of kilometers) area and put basinwide populations on a steep trajectory of decline.

Several groups, including the Mekong River Commission, have called for a ten-year moratorium on mainstream dams to better assess the long-term social and environmental costs of such projects.  Such large-scale assessments have become common on rivers where managers seek to rebuild migratory fish stocks but are urgently needed at the outset of projects to avoid unnecessary destruction of ecosystem services and costly restoration efforts.  The long-term viability of vulnerable fish populations – and people who depend on fish for food – is dependent on the ability to minimize the impacts of any mainstream dams built on the lower Mekong River.

Megafish at Risk

At least five species of giant fish occur in the vicinity of the Xayaburi site and the three largest and most endangered, the Mekong giant catfish, giant pangasius, and seven-striped barb, will suffer the most serious consequences if the dam is built.

Mekong giant catfish (Pangasianodon gigas)

Picture of a mekong giant catfish

A Khmer man travels with a 353-pound, 8-foot-long Mekong giant catfish (Pangasianodon gigas) on the Tonle Sap River in Cambodia. Photograph courtesy of Zeb Hogan.

The critically endangered Mekong giant catfish, a Mekong endemic, reaches a maximum length of 300 centimeters (118 inches) and a total weight exceeding 300 kilograms (660 pounds).  Based on catch data and genetic studies, it is likely that the Mekong giant catfish, though extremely rare, remains widespread throughout the basin.  It also appears likely that the behemoth uses the stretch of river of the Xayaburi dam as a migration corridor.

If the Xayaburi dam is built, it could alter Mekong flows and disrupt spawning cues, block spawning migrations, and slow downstream dispersal.  Some mortality may also occur if fish pass through dam turbines.  Impacts from Mekong mainstream dams could conceivably cause the extinction of the species.

Giant pangasius (Pangasius sanitwongsei)

Giant pangasius

The critically endangered giant pangasius catfish grows to 3 meters (10 feet) and 300 kilograms (660 pounds).  It once occurred in both the Chao Phraya and Mekong rivers, but wild self-sustaining populations are now limited to the Mekong.  The giant pangasius catfish is a main river species.  Adults seem to favor the deep pool areas of Chiang Saen, Chiang Khong, Loei, Xayaburi, Stung Treng, and Kratie, while the young are widespread in the main channel, especially along the Thai-Lao border and in Cambodia downstream of Kratie.

The giant pangasius, like many fish species in the Mekong River, migrates between habitats, requires specific water quality and flow, and has a complex life history dependent on migration and seasonal floods.  Mature fish migrate up the Mekong River and spawn in April and May at unknown spawning grounds.  Adult fish occur in both Chiang Rai and Loei Provinces in Thailand, and young fish occur along the Thai-Lao border from Nong Khai to Nakorn Phanom.  This suggests not only that giant pangasius occur at the Xayaburi site, but that the Xayaburi site is within the migratory corridor and may be in the vicinity of a spawning area.

More information is needed about the distribution and behavior of giant pangasius, but it appears very likely that the Xayaburi dam site is critical habitat for the species.  Construction of the dam could disrupt migratory behavior and spawning.  Once the dam is built, it may alter water flows and cues to migration, block upstream spawning migrations, and slow downstream dispersal.  Some mortality may also occur if fish pass through dam turbines.  Impacts from the dam could conceivably cause the extirpation of the giant pangasius from the Mekong River.

Seven-striped barb (Probarbus jullieni)

Seven-striped barb

Seven-striped barbs. Photo: Lerdsuwa, Wikimedia Commons

The seven-striped barb occurred historically in Mekong, Chao Phraya, and Meklong basins in Southeast Asia and the Pahang and Perak basins of Malaysia.  Adult seven-striped barb appear to prefer main river habitats, whereas juveniles will enter floodplain habitats during the rainy season.  As recently as 1989, the seven-striped barb was reported as “extremely abundant” in the Mekong, but subsequent accounts indicate a significant drop.

The seven-striped barb occurs in the area that will be impacted by the Xayaburi dam.  The fish is migratory: adults migrate upstream in the dry season and form spawning aggregations.  Large fish remain in deep pools during low water.  Young fish enter floodplain habitats during the rainy season.  The Xayaburi dam could impact spawning sites, upstream migration of adults, and downstream dispersal of young.

Operation of the dam (variable flows) could also impact spawning triggers and dry season habitat.  Depending on the exact location of the spawning sites and the distance the species migrates, the Xayaburi dam could impact seven-striped barb populations within several hundred kilometers of the dam site.

November 3, 2012

Another major Xayaburi pact

Click on the link to get more news and video from original source: http://www.eco-business.com/news/another-major-xayaburi-pact/

“Right now, it is impossible to say it is going to benefit the Lao people… for past projects, there is no evidence that the revenue has benefited the community. Andritz should be reconsidering its involvement in this.”

Published : Wednesday, October 31st, 2012
By : The Phnom Penh Post

Category : Energy, Water
Region : , ,

The inking of a €300 million contract for water turbines, and job advertisements marked “urgent” appear to be the latest signs that Laos is powering forward with the Xayaburi hydroelectric dam project on the Mekong River.

Assurances the $3.8 billion project was on hold pending further studies into its possible environmental impacts on downstream Cambodia have formed a strong part of Lao ministers’ parlance since news of a construction contract surfaced in April.

Talk and action in the past week, however, suggest Laos is proceeding with building the 1,285-megawatt dam, which environmental groups and Cambodian fishing communities fear could destroy livelihoods by blocking fish migration and sediment flow.

Austrian-based company Andritz has announced that CH Karnchang, the dam’s Thai builder, has placed an order with it for electro-mechanical equipment.

“The order value is about 250-300 [million euros] and… is planned to come into force during the next six months. Start-up is scheduled for the end of 2019,” Andritz said in a statement.

“[Andritz] will deliver seven Kaplan turbines, each with an output of 175 [megawatts], an additional Kaplan turbine with an output of 68.8 [megawatts], generators and governors, automation systems and additional equipment.”

The company added that Laos was focusing on hydropower projects to improve the standard of living of its population, stimulate the economy and reduce its dependence on fossil energy.

More than 85 per cent of Xayaburi’s energy is expected to be sold to Thailand.

Today is the closing date for applications for five inspector positions that the Xayaburi Power Company is seeking “urgently to fill”.

Listed on Laos website 108job, the company’s advertisement calls for males aged 25 to 30 who speak fluent Thai to apply. Experience in a power plant would be an advantage, it says.

When the Post rang the number, a man said he was not involved with the Xayaburi Power Company.

These developments came amid firm comments from Lao deputy minister of Energy and Mines Viraphonh Viravong about his country’s plans for hydroelectricity.

“There is no question of [Laos] not developing its hydropower potential,” he said last week.

“The only question is how to do it sustainably.”

Ame Trandem, Southeast Asia program director for International Rivers, said Laos had no right to build the dam as Cambodia and Vietnam had not agreed to it.

“Right now, it is impossible to say it is going to benefit the Lao people… for past projects, there is no evidence that the revenue has benefited the community. Andritz should be reconsidering its involvement in this.”

The Post could not confirm reports Cambodia had sent a delegation to Laos yesterday to again urge it to suspend construction of the dam.

Related News & Features

October 26, 2012

Laos on Mekong River Dams: More Lao dam deals inked

More Lao dam deals inked

Click on the link to get more news and video from original source: http://www.eco-business.com/news/more-lao-dam-deals-inked/

Published : Thursday, October 25th, 2012
By : The Phnom Penh Post

Category : Energy, Water
Region : ,
Tags : , , , ,

Laos has contracted firms to build and operate another significant hydropower plant on the Mekong River system, adding to the existing furore over potential effects on downstream countries such as Cambodia from the controversial Xayaburi dam.

The contracts, reportedly worth $1 billion, are for a series of three dams making up the Xe-Namnoy plant on two tributaries of the Se Kong River, which flows into the Mekong from the Bolaven Plateau in southern Laos – just some 100 kilometres from Cambodia.

Because of this close proximity, communities on the Cambodian-Lao border would feel particularly acute downstream affects; however, since no impact assessments of the project had been made public, this was hard to measure, conservation group International Rivers warned yesterday.

Sang Lee, an employee from the architectural department of South Korean firm SK Engineering & Construction, which has been contracted to build the dams, confirmed yesterday that project details were now being ironed out ahead of construction.

“As far as I know, they’re trying to arrange finances, and at this stage, they are working on technical documents,” he said. “I’m not so sure about when construction will start.”

Lee asked for further questions to be emailed so they could be answered by someone handling the project. A response was not immediately received.

Tania Lee, Lao program coordinator at International Rivers, said the plant would have potentially severe but unclear impacts on hydrological flow, fishing and food security.

“The major lack of any information is a huge problem, because we don’t know if the environmental impact assessment has been done or a social impact assessment has done,” she said.

The Laos government’s failure to publicly release such assessments violates the country’s own laws regulating development projects, yet despite this, an international lender was considering granting a loan for the project, she added.

In total, Lee said, Laos planned to build more than 70 dams on various tributaries of the Mekong and was now constructing eight dams on the Xe Kaman and Xe Kong rivers dams with about 15 planned for the Sekong River Basin and seven on the Nam Ou river in the north.

The Xe-Namnoy plant will generate an estimated 400 megawatts of electricity from water flowing from a height of 630 metres, according to the website of the firm Team Group, which is providing consulting services for the project.

As is the case with Xayaburi, Laos is planning on selling significant amounts of the power generated by the dam – 90 per cent – to the Electricity Generating Authority of Thailand, Team Group’s website states.

EGAT, which has resisted pressure from conservation groups to cancel its power purchase agreement for the 1,285 megawatt Xayaburi dam because of the predicted environmental havoc it will wreak, did not respond to inquires from the Post yesterday.

An SK Construction spokesman estimated Laos would earn about $30 million annually from fees and taxes, Agence France Presse has reported.

South Korean state-run firm Korean Western Power will operate the dam until 2045, when control will be handed over to Laos, according to AFP.

Officials at the Lao Ministry of Natural Resources and Environment could not be reached and Mao Hak, Cambodia’s director of river work at the Ministry of Water Resources, declined to comment, because he was not aware of the project.

September 7, 2012

Lao dam breaks ground

Click on the link to get more news and video from original source:  http://www.eco-business.com/news/lao-dam-breaks-ground/

Published : Thursday, September 6th, 2012
By : The Phnom Penh Post

Category : Energy, Water
Region : ,

A waterfall has been blasted less than two kilometres from the Cambodian-Lao border, beginning work on another unapproved hydroelectric dam on the Mekong river, environmental group International Rivers claimed yesterday.

Pianporn Deetes, the Thailand campaign coordinator for International Rivers, said she had learned of the excavation work, near Khone Falls, the largest in South East Asia, during a recent visit to Champasak province, where the Lao government proposes to build the Don Sahong hydroelectric dam.

“Villagers reported that the dam builders have already blasted a waterfall near the [dam] site,” she said, adding this happened late last year. “Lao officials have told the villagers that they will not be allowed to fish with Ly fishing gear [large bamboo traps] in the area beginning in 2014.”

Currently, fish are able to migrate downstream through Laos and into Cambodia through the 50- to 100-metre-wide Hou Sahong channel year-round; however, the Lao government will block this migration avenue, diverting fish through an alternative five metre-wide passage where the blasted waterfall had been.

“The dam’s construction, and the end of Ly fishing, is a major concern because local people depend so heavily on fishing for their livelihoods,” Deetes said.

Although much less powerful than the proposed 1,285 megawatt Xayaburi dam in northern Laos, Don Sahong, which could have a capacity of 380 megawatts, would also threaten Cambodian fishing communities downstream because of its potential to block the Hou Sahong channel, the only section of the Mekong that fish pass through during the dry season, IR said.

The Malaysian company Mega First Corporation is contracted to build Don Sahong, but fellowMekong River Commission states Cambodia, Vietnam and Thailand have not agreed to the project – a requirement under a 1995 pact.

Ame Trandem, Southeast Asia program director for IR, said the Don Sahong dam would be disastrous for the Mekong river’s fisheries: “Like the Xayaburi dam, the impacts would be trans-boundary.”

Villagers living near the Don Sahong dam site had reported that Mega First had blasted the waterfall in order to create a small fish passage, she said.

“The Lao government should immediately clarify the current status of the Don Sahong dam and provide an update on the channel excavation work that has occurred in the Khone Falls,” Trandem said.

When contacted yesterday, a Mega First Corporation employee who declined to give his name said construction of the dam was a long way off.

“We have definitely not begun building this dam,” he said. “We haven’t even appointed a contractor.”

The company had not undertaken any work at the site and still needed approval for the project from the MRC, he said. “There will be nothing until the end of next year.”

Trandem said she was concerned the Lao government would say work at the site was “preparatory”, as it had with work at the unapproved Xayaburi dam.

Cambodian National Mekong Committee secretary-general Te Navuth said he was shocked to hear of work at the Don Sahong site.

“We understand this project is one of 11 planned on the [Mekong’s] main stream . . . but I am surprised to hear this name mentioned now,” he said, adding that he had received no recent information about it.

The Lao ministries of foreign affairs and water resources and environment could not be reached for comment.

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